Six-wheel truck



Aug. 10 1926. 1,595,314

' 'H.MLPFLAGER 5 IX -WHEEL TRUCK Filed Au ust 15, 1925 INVENTOIE A ar/y fl7. 644 an nal box in transverse section,

Patented Aug. 10, 1926.

UNITED STATES HARRY M. PFLAGER, OF ST. LOUIS, MISSOURI, ASSIGKOR MISSOURI, A. CORPORATION OF NEW JERSEY.

COMPANY, OF ST. LOUIS,

TO COMMONWEALTH STEEL SIX-WHEEL TRUCK.

Application fled August invention relates to railway rolling stock and consists in an improved truck structure'particularly adapted for use on six wheel trucks and involving detail arrangement of the equalizing bars and the centra journal boxes.

The object of my invention is to so assemble the inner ends of the equalizers with the central journal box that they will be retained against separating movement lengthwise of the truck. This object is attained by overlapping1 the adjacent ends of the equalizers so t at each ma extend across the transverse rib provide on top of the journal box and engage both sides of the same.

Additional objects of my invention are to so construct the overlapping ends of the equalizers that, when tilted upwardly at their outer ends, the load transferred by them to the journal box is distributed to the middle portion of the box rather than to the side thereof and is carriedby a wider portion of the equalizer than would be the case if the load was transferred at the extreme end of the equalizer. I attain these objects by beveling the end of the lower face of that portion of the equalizer which engages the journal box. e

Other detail objects of my invention are referred to in the description below.

In the accompanying drawings illustrating a selected embodiment of my invention- Figure 1 is a side elevation of a six wheel truck with one pair of wheels shown as elevated above the level of the other pairs of wheels.

Figure 2 is a detail on a larger scale, showing the inner ends of the two equalizer bars in side elevation and the central jourand is taken approximately on line 2-2 of Figure 3.

Figure 3 is a vertical section taken on line 3-3 of Figure 2.

Fi ure 4; is a top view in F1 res 2 and3.

The truck comprises journal boxes 2, and truck frame 3, here shown as having integral pedestals 4. lhe frame 3 is supported in t e usual manner by truck sprin 5 mounted on equalizers 6 which are of t e usual contour and at their of the parts shown the usual wheels 1,

15, 1925. Berta I0. 60,483.

outer ends each equalizer may be of the shape previously used in such trucks.

The inner end of each eq alizer 6 is vertically-beveled, as indicate at 7 in Figure l 4, from a point on one side of the center line of the ournal box to a point on the other side of the center line. This enables the two equalizers to overlap each other at their ends, although the bodies of the ualizers are in alignment with each other. he bottom surface of the end of each equalizer is provided with a transverse groove ada ted to engage both sides of the rib 9 exten ing longitu inally of the journal box, the same being a common element of boxes in general use. The lower surface of each equalizer is beveled, as indicated at 10, from the outer side of recess 8 upwardly and outwardly to the end of the equalizer.

With this construction, the inner end of the equalizer engages both sides of the journal box rib 9 to prevent sliding motion of the equalizer over the top of the ournal box, but, irrespective of tilting of the equalizer, the weight of the equalizer and its load will never be supported by a portion of the bar having a smaller cross sectional area than the portion adjacent the journal box rib, nor will the wei ht of the equalizer and its 10 ever be app ied to the journal box by the extreme end of the equalizer which would tend to tilt the box in the pedestal and increase the wear on the sides of the box.

The beveling of the ends of the equalizers as indicated at 7 comprises a relatively simle step in the manufacture of the equalizers and does not tend to weaken the end of the equalizer to the extent provided b an angular recessin%of the end of the equa izer as described in osson Patent No. 979,033, dated Dec.20,1910.

Obviously, the an le of the beveled portions 7 and 10 may e varied and other details of the elements shown may be modified as desired without departure from the spirit of my invention as expressed in the apnded claims.

I claim:

1. A car truck equalizer having an end with its lower face terminating in a bevel extending upwardly and outwardly from its journal box engagmg ortion.

2. A car truck equa izer having an end supported adapted to rest upon the top of the journal box and to engage both sides of a rib extending longitudinally of the box top, said end being beveled beyond the rib engaging portion.

3. A car truck equalizer having an end adapted to rest upon the top of a journal box and to engage both sides of a rib extending longitudinally of the journal box, the bottom and side of said end being beveled beyond its rib engaging portion.

4. In a car truck equalizer, a journal box portion having a recess in its lower face adapted to enga e both sides of a journal box rib, said face eing beveled be yond said recess and said portion having a side wall beveled from a point further from the adjacent end of the equalizer than said recess.

5. In a six wheel truck, a pair of equalizers in alignment with each other, each adapted to engage both sides of the transverse rid on the central journal box and each having its lower portion beveled upwardly from said ridge.

6. In a six Wheel truck, a pair of equalizers in alignment with each other having their adjacent ends beveled vertically to overlap each other over the central journal box and each adapted to enga e both sides of the transverse ridge on said box and each having its lower portion beveled upwardly from said ridge.

In a six wheel truck, a middle journal box, equalizers overlapping each other at their inner end portions the full width of the load su porting surface of said box, and means for 'miting the distribution of load by each equalizer to the adjacent half of said'box.

8. In a six wheel truck, a middle journal box, equalizers havin their adjacent portions beveled vertically to overlap each other over said journal box, and means for limiting the distribution of load by each equalizer to a portion of the equalizer spaced from its end to insure a predetermined minimum cross. sectional area of the load sustainin portion of the equalizer.

9. In a true a journal box, an equalizer having an and resting on said box and interlocked therewith against movement toward the end of the truck, the outer end of said equalizer being free to tilt upwardly without affecting its interlocking with said box.

10. In a truck, a journal box, aligned equalizers having their inner ends beveled to overlap each other, resting on said box, and each interlocked with said box against movement away therefrom toward an end of the truck.

11. In a truck, a journal box, aligned equalizers having their inner ends beveled in a vertical plane to overlap each other and having their inner ends resting on said boxand interlocked therewith against movement toward the ends of the truck and having their lower faces terminating 1n beveled portions beyond the interlockin point to enable the outer ends of the equa izer to tilt upwardly without afi'ecting the interlocking with said box.

In testimony whereof I hereunto aflix my signature this 6th day of August, 1925.

H. M. PFLAGER. 

